CN2060786U - Directly-acted paver - Google Patents
Directly-acted paver Download PDFInfo
- Publication number
- CN2060786U CN2060786U CN 89209754 CN89209754U CN2060786U CN 2060786 U CN2060786 U CN 2060786U CN 89209754 CN89209754 CN 89209754 CN 89209754 U CN89209754 U CN 89209754U CN 2060786 U CN2060786 U CN 2060786U
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- CN
- China
- Prior art keywords
- mangle
- valve
- hydraulic efficiency
- oil cylinder
- efficiency servo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Road Paving Machines (AREA)
Abstract
The directly-acted spreader of the utility model relates to the improvement of the road surface spreader, in particular to the improvement of the control mechanism of the ironer of a bituminous concrete spreader, wherein, a hydraulic servo controls directly and forcibly the ironer to iron the road surface, and actuates the ironer to be provided with the function of the servo and adjustment according to the changes of the outside situation. The utility model has the advantages of simple structure, and easy manufacture, control and maintenance.
Description
The utility model relates to the improvement of sub-base grader, particularly relates to the improvement of controlling organization of the mangle of bituminous concrete paver.
External at present advanced floating type automatic paver, automaticity is higher, the quality of paving concrete pavement is also relatively good.Its paver main feature is to remain at work with the elevation angle certain between the road surface with mangle, so that the suffered resistance of mangle is able to balance, guarantees the quality of paving concrete pavement.Electro-hydraulic device is set for this reason, the resistance balance of, mangle constant with the elevation angle that moves up and down, makes its mangle of the compensation Yin Luji rough and uneven in surface axis of traction that causes.But when operation, variation as the anterior material accumulating amount of the granularity of bituminous concrete, temperature, grating, the speed that paves and mangle, the capital makes mangle lose resistance balance, exceeds the levelling function of this machine, therefore also be provided with complicated speed of travel automaton and pitch and give thermic devices, mainly influence with some that eliminate in the above-mentioned factor, however, this machine also all has the requirement of qualification to the external condition of the granularity of material spreader, grating, temperature etc.In a word, the levelling guiding mechanism of this paver is complicated, and is also poor to construction environment compliance.
The purpose of this utility model for addressing the above problem, is shakeout under the prerequisite of pavement quality in assurance exactly, adopts simple in structure, the stronger Direct Action Type bituminous pavement paving machine of adaptation construction environment.
The purpose of this utility model is achieved in that exactly and directly controls mangle, forces mangle ironing road surface with hydraulic servo device, and makes mangle can have servo mediation function with the variation of extraneous circumstance in the course of the work.
The utility model comprises big arm, axis of traction, demodulator, mangle, the two ends that it is characterized in that mangle are provided with hydraulic efficiency servo-valve, go the same way respectively line of face,mounting or the device of making even of the contact of hydraulic efficiency servo-valve contacts, oil cylinder is set respectively between the two ends of car body and mangle, and oil cylinder is controlled by hydraulic efficiency servo-valve; The bottom of mangle is wear-resisting steel sheet.
Adopting thin and wear-resisting steel plate is for increasing the heat conductivility (all adopting steel plate abroad) of mangle; Press effect for promoting, but the bottom is the afterbody circular arc of wear-resisting steel-sheet mangle.
Contact the touch panel that the top is a circular arc can be set so that can be got the baseline signal on road surface more at any time on the device of making even.
Hydrauservo System can comprise hydraulic pump, reversal valve, hydraulic efficiency servo-valve, one way sequence valve, oil cylinder, electromagnet.
Describe the course of action of the utility model in the work of paving in detail below in conjunction with accompanying drawing:
The contact of hydraulic efficiency servo-valve is to contact with the road surface reference line of artificial setting or the device of making even, and constantly obtains and sets the signal that benchmark is compared, and its signal instructs cylinder action, oil cylinder that mangle is worked on the plane of a setting all the time through hydraulic efficiency servo-valve.Mangle has following main three kinds of states.
1, instantaneous propradation: when external condition causes the moment that mangle rises, the contact of hydraulic efficiency servo-valve weakens the pressure of touch panel or road surface reference line, hydraulic efficiency servo-valve produces displacement under the effect of spring, the A mouth is opened gradually, hydraulic oil enters the oil cylinder epicoele through the A mouth, promotes that in-oil cylinder piston moves down, mangle descends thereupon.The oil of oil cylinder cavity of resorption is through one way sequence valve, hydraulic efficiency servo-valve oil sump tank.For preventing mangle because of deadweight decrease speed fast (that is: make the motion of in-oil cylinder piston steady), the oil cylinder cavity of resorption is connected with the backpressure circuit of being made up of one way sequence valve.When the piston of oil cylinder promoted mangle decline, contact was enlarged to set condition to the pressure of touch panel or road surface reference line thereupon, and the spool of hydraulic pressure Dong clothes valve returns to intermediateness immediately.
2, moment decline state: when external condition causes that mangle descends, the contact of hydraulic efficiency servo-valve increases the pressure of touch panel or road surface reference line, force the spool of hydraulic efficiency servo-valve to press to spring terminal, the B mouth is opened gradually, hydraulic oil enters the oil cylinder cavity of resorption through B mouth, one way sequence valve, in-oil cylinder piston drives mangle and moves upward, and the oil of oil cylinder epicoele is through the fuel tank of getting back to of hydraulic efficiency servo-valve.When moving on mangle, when the contact of hydraulic efficiency servo-valve weakened to setting value to the pressure of make even device or road surface reference line, the spool of hydraulic efficiency servo-valve returned on the centre position again under the effect of spring.
3, stable state:
The spool of hydraulic efficiency servo-valve be in hydraulic efficiency servo-valve intermediateness, be exactly the B mouth, the state that the A mouth is closed, the pressure of contact be set condition, this also is a metastable state, in fact since extraneous factor influence the always frequent action of hydraulic servo spool, carry out servo tracking, make mangle remain at work in the plane of setting.
Rising and falling of mangle:
Give electromagnet with instruction, make the displacement of hydraulic servo spool, hydraulic efficiency servo-valve can be used as reversal valve and controls fixedly rising and falling of mangle at this moment.
The utlity model has following major advantage:
The utility model mainly is to force mangle ironing road surface with hydraulic means, can not be subjected to the influence of extraneous change in resistance, just can omit complicated speed of travel automaton and pitch and give thermic devices etc., therefore of the present utility model much simple in structure, and have and be easy to make, be easy to grasp and characteristics such as maintenance.
Fig. 1 is a partly structural representation of mangle control of the present utility model,
1 oil cylinder, 2 big arms, 3 axis of traction, 4 make even device pull bar, 5 make even device, 6,7 device touch panels of making even, 8 contacts, 9 hydraulic efficiency servo-valves, 10 demodulators, 11 mangles, 12 asphalt concrete pavements, 13 electromagnet, 14 oil pipes, 15 car bodies.
Fig. 2 is a partly structural principle schematic diagram of mangle control of the present utility model,
The afterbody of the elevation angle of 16 mangles, 17 mangles, 18 handwheels.
Fig. 3 is mangle control structure of the present utility model Hydrauservo System figure partly,
19 pressure meters, 20 pressure meter switches, 21 smart oil filters, 22 hand-operated direction valves, 23 oil pumps, 24 oil filters, 25 fuel tanks, 26 overflow valves, 27 motors, 28 roadbeds, 29 one way sequence valves, 30, button.
Fig. 4 is a structural representation of the present utility model,
31 driver's cabins, 32 bituminous concretes, 33 bituminous concrete hoppers, 34 wheels, 35 trippers, 36.
Claims (4)
1, direct-driving paver for road pavement, comprise big arm, axis of traction, demodulator, mangle, the two ends that it is characterized in that mangle are provided with hydraulic efficiency servo-valve, go the same way respectively line of face,mounting or the device of making even of the contact of hydraulic efficiency servo-valve contacts, oil cylinder is set respectively between the two ends of car body and mangle, and oil cylinder is controlled by hydraulic efficiency servo-valve; The bottom of mangle is wear-resisting steel sheet.
2, direct-driving paver for road pavement according to claim 1 is that the afterbody of wear-resisting steel-sheet mangle is a circular arc bottom it is characterized in that.
3, direct-driving paver for road pavement according to claim 1, the device that it is characterized in that making even is provided with the touch panel that the top is a circular arc.
4, direct-driving paver for road pavement according to claim 1 is characterized in that Hydrauservo System comprises hydraulic pump, reversal valve, hydraulic efficiency servo-valve, one way sequence valve, oil cylinder, electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209754 CN2060786U (en) | 1989-11-28 | 1989-11-28 | Directly-acted paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209754 CN2060786U (en) | 1989-11-28 | 1989-11-28 | Directly-acted paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060786U true CN2060786U (en) | 1990-08-22 |
Family
ID=4866264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209754 Withdrawn CN2060786U (en) | 1989-11-28 | 1989-11-28 | Directly-acted paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522071A (en) * | 2016-11-15 | 2017-03-22 | 温州电力设计有限公司 | Electromagnetic type steel plate laying vehicle |
-
1989
- 1989-11-28 CN CN 89209754 patent/CN2060786U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522071A (en) * | 2016-11-15 | 2017-03-22 | 温州电力设计有限公司 | Electromagnetic type steel plate laying vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |